Paddle-wheel for boats



W. H. KNAPP. PADDLB WHEEL P011 BOATS.

(No Model.)

Patented se ms, 1894.

Izvgnlar.

1' mmms mans 00.. mom u'r UNITED STATES PATENT OFFICE,

WILLIAM H. K NA PP, OF GALESBURG, MICHIGAN.

PADDLE-WHEEL FOR BOATS.

SPECIFICATION forming part of Letters ,Patent No. 526,533, dated September 25, 1894. Application filed June 6,1894. Sorial No. 513,663. (No model.)

To allwhom it may concern: a

Be it known that I, WILLIAM H. KNAPP, a citizen of the United States, residing at Galesburg, county of Kalamazoo, State of Michigan, have invented a new and useful Paddle- Wheel for Boats, of which the following is a specification.

This invention relates to that class of paddle-wheels in which the axles of the paddles have pivoted bearings in the periphery of ing side roller-bearings to hold it in position in lieu of the central axis. In another the I paddle-wheel axles had no bearing support at the inner end but depended for support upon the cranks which connected the paddle wheel with the paddlecontrolling wheel; and in still another the paddle-Wheel axle did not pass through the paddle-controlling-wheel but did have axle-bearings at the inner end but in this latter-wheel the spokes were bent inward to a hub at the center of the wheel and in all these prior constructions the paddles extended on both sides of their axles.

The object of my invention is to effect greater solidity, compactness and simplicity, by employing a bearing-support for the inner end of the paddle-wheel axle, in which construction the spokes of both of the Wheels of the paddle-wheel pro'per,are straight and said wheels are rigidly attached to their axle in close proximity to its end-bearings; and in which the spokes of the paddle-controllingwheels are also straight sothat its bearings shall be in close proximity to the inner end of its axle on a direct line with its spokes; and long paddles in proportion to the distance the two wheels of the paddle-wheel proper, are apart, thus making a more simple, rigid and compactwheel than heretofore; and another object is to employ paddles which are only on one side of their axle and an improved method of attaching them to said axle.

In the drawings forming a part of this specification Figure 1, is a sectional elevation on line 3-3, looking from a point at the right hand of Fig. 2. Fig. 2, is a sectional elevation on line 33, in Fig. 1, (said lines crossing both figures) looking from a point at the left; Fig. 3, a detailenlarged from Fig. 1, and Fig. 4, is a plan view of one of the paddles showing a change in structure.

Referring to the lettered parts of the drawings, A A are the two wheels of the paddlewheel proper, rigidly attached to the axle B, in close proximity to its end bearings as will be seen in Fig. 2. The outer end of the axle B, has bearings at O, in a portion of the frame which supports the wheel, and the inner end of said axle B, has bearings at D, in the lower end of the right angle projection E, which projection is integral with the axle F, of the paddle-controlling wheel H. The inner wheel A, is in such close proximity to said integral projection as to just clear the same when revolving. The axle F, is rigidly attached to another portion I, of the frame which supports the wheel, said axle F, being on a different but parallel plane with the plane of axle B, thus bringing the paddle-wheel proper and the paddle-controlling-wheel eccentric to each other. spokes of these Wheels are straight and that the point of axle-support is on a line with said spokes and that the wheels are just sufficiently far enough apart to clear the right angle integral projection E, of the axle F, and also that the paddle-controlling-wheel H, is

in such close proximity to the integral pro- It will be observed that the the ends of the spokes of the paddle-controlbnisiae omymmsmke since onlythe lower pprti'ons' 10f enter the water, thel upper port paddles are notneededq. {Beides if employed 1 water and spray; causing undue fiitidll with as ligh-t as possible andstill. have a sufli'cient out any material advantage.,

paddle fitting against, o'n; de-lof said M195;

Of course if preferfiad pajddh :mayeX-f tend on, opposite side of axles Ji; asap Pym; I

'1 ,said bossega',paddle-contr01ling-whee1 hav In order to have thes'pokes 0f the whqellA,f

bearing surface for the paddle-axles 1m the; ends,; said spokes are provided, "with an; in-

, wardly prqjejcting" bossfiflef Said endg andiini orderito have the Wheels A A, as, nar' together as possible and :stilL have the? paddles K; as

long as possible in pnopotiibn thereto, said paddles are provided, with names 31, atz theg f corners to agscolmmodate said bosses 13 rigidly attached t othe latter named axle, d1

1 mfin thus ds fibea y-in e o I claim, aswllemlaml desire to Sewn-e by Lettersf ,1

Apaddle-wh ca pr i h @2 bn diffrent lans heeae trms to each 1 other @oneo'fj said; axles having, a, righbanglq 1 i grad iprojefdtienflforming'a baringsupport" 130 the inner end of'the other axle, two whelsv in close prozgimityto each end bearing of 3a. axle, thespbk esofisaidjwhels being stnaig and those "of 1111 61 011% of jsagidwheelsibe i l'g in such; c'lbSe prqximityfc I116 right-an? projection a m 3' 1151; clear thesame when t p k s ein Pr YiflWW- h inner 10 and the paddles havingnatchesj to; ztecei wonmgaud 'cr'afiks 'eonnecting the axlesmf h m d eslwifi th b te nl f h 1 k qfsai dkwhel s,snbstaxitiallyfas sqbforth; 1 jInl testimony to; the fonegqing 1mm 1.116 unjcbsubscribed my name ih l the presence wm tness s W L AM H- KN I ENsMmE 

